Standard Lemma guide

bigmouth

adj · noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • rhymes with -aʊθ
  • Southern-England: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

Applied to various creatures that have a large mouth.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: biology, natural-sciences, zoology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

One who talks too much or says things which should not be said.

Definition source: English Wiktionary via Wiktextract

Usage: derogatory, informal, often

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From big + mouth.